Linking to another directory is the best option. In fact you will only need
to link the GIF and  CLASS files.

The ADSM "instance" will be known from the directory it is started. The
directory must contain the dsmserv.opt file, which will be different for
each server (remember you will have to select different TCP ports for each).

Customize startup scripts and everything will be alright.

Last, but not least. Customize the client (/usr/lpp/adsm/bin/dsm.opt) to
accept both ADSM servers. Use the SERVERNAME (a symbolic name) option to
select which server you will be connecting to.

I suggest selecting different network interfaces for each server.

Just a little doubt. ADSM can be very resource demanding. What platform are
you using ? Why 2 servers on the same box ? Be careful with performance ...

best regards,
Rodrigo

From: Joshua Bassi <jbassi AT GLORYWORKS DOT COM>
Reply-To: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Two server with the same database ??
Date: Sat, 2 Oct 1999 12:41:54 -0700

Roger,

I am looking into a configuring 2 ADSM server on one RS/6000 for one
of my customers.  What I am wondering is, do you install the ADSM
binaries twice?  Obviously each server needs his own DB, Log, and
storage pools, option files, etc; but what about the binaries?

What I was thinking of doing would be to install ADSM normally,
then create a "bin2" directory with all my option files in it
and then link all my binaries back to the real bin directory.

Would this work or is there a better way to do it?


Joshua S. Bassi
Storage Management Team Lead
Dickens Services Group
jbassi AT gloryworks DOT com
(404) 386-9848

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
Roger Hohmann
Sent: Friday, October 01, 1999 8:24 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Two server with the same database ??


We are using a pair of adsm servers with hacmp. In normal mode, each
of them has one adsm running. In case of failure, all filesystems are
mounted to the remaining server and he has 2 dsmserv's running, each
with it's own db. (We had to use different tcpports for admin and
http). It's a little tricky, and you need to double adaptors and you
need ssa disks, but it's worth the money.

If we (or the hacmp) recognizes the server crash, we are up with both
servers a on one machine a few minutes later. Our customers won't
notice it.

Roger

-----Urspr|ngliche Nachricht-----
Von: Riccardo Capecchi <r.capecchi AT CINECA DOT IT>
An: ADSM-L AT VM.MARIST DOT EDU <ADSM-L AT VM.MARIST DOT EDU>
Datum: Freitag, 1. Oktober 1999 15:49
Betreff: Two server with the same database ??


>I wonder is is possible to have 2 server that work with the same
clients
>and have the same database (but only 1 copy of backup and archivied
>files), mainly the second should be the mirror of the first, so if
the
>first crash i've no problem using the second while i rstore the
first.
>There is something is ADSM or i should use the operating system ??
>I use AIX 4.21
>
>--
>                     Saluti, Riccardo Capecchi
>
>===========================================================
>| Riccardo Capecchi - Gruppo Gestione Sistemi
>| CINECA  (Inter-University Computing Center)
>| Via Magnanelli, 6/3  I-40033
>| Casalecchio di Reno Bologna Italy
>| http://www.cineca.it - 051/6171411
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